/**
* Computes a new bounding box, bbox1 UNION bbox2
*/
static function union($bboxArray)
{
if (count($bboxArray) == 1) {
return array_pop($bboxArray);
} elseif (count($bboxArray) >= 2) {
$bbox1 = array_pop($bboxArray);
$bbox2 = Mapbender_bbox::union($bboxArray);
if (!($bbox1 != null && $bbox1->isValid()) && !($bbox2 != null && $bbox2->isValid())) {
$e = new mb_exception("Mapbender_bbox: union: both parameters invalid!");
return null;
} elseif (!($bbox1 != null && $bbox1->isValid()) && ($bbox2 != null && $bbox2->isValid())) {
$e = new mb_exception("Mapbender_bbox: union: first parameter invalid!");
return $bbox2;
} elseif ($bbox1 != null && $bbox1->isValid() && !($bbox2 != null && $bbox2->isValid())) {
$e = new mb_exception("Mapbender_bbox: union: second parameter invalid!");
return $bbox1;
} else {
if ($bbox1->epsg == $bbox2->epsg) {
$e = new mb_notice("Mapbender_bbox: union: bbox1 is: " . $bbox1);
$e = new mb_notice("Mapbender_bbox: union: bbox2 is: " . $bbox2);
$e = new mb_notice("Mapbender_bbox: union: merging bbox1 and bbox2...");
return new Mapbender_bbox(Mapbender_point::min($bbox1->min, $bbox2->min), Mapbender_point::max($bbox1->max, $bbox2->max), $bbox1->epsg);
} else {
$e = new mb_exception("Mapbender_bbox: cannot process union with different EPSG codes");
}
}
} else {
$e = new mb_exception("Mapbender_bbox: Invalid parameter (Not an array)!");
}
return null;
}
